POWER OF ATTORNEY

        Know all by these presents, that the undersigned hereby constitutes and
appoints each of ION YADIGAROGLU AND ERIC TECHEL, signing individually, the
undersigned's true and lawful attorneys-in fact and agents to:

        (1)   execute for and on behalf of the undersigned, an officer, director
or holder of 10% of more of a registered class of securities of TrueCar, Inc.
(the "Company"), Forms 3, 4 and 5 in accordance with Section 16(a) of the
Securities Exchange Act of 1934, as amended (the "Exchange Act") and the rules
thereunder;

        (2)   do and perform any and all acts for and on behalf of the
undersigned that may be necessary or desirable to complete and execute such
Form 3, 4 or 5, complete and execute any amendment or amendments thereto, and
timely file such forms or amendments with the United States Securities and
Exchange Commission and any stock exchange or similar authority; and

        (3)   take any other action of any nature whatsoever in connection with
the foregoing which, in the opinion of such attorney-in-fact, may be of benefit,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.

        The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Exchange Act.

        This Power of Attorney shall remain in full force and effect until the
earliest to occur of (a) the undersigned is no longer required to file Forms 3,
4 and 5 with respect to the undersigned's holdings of and transactions in
securities issued by the Company, or (b) revocation by the undersigned in a
signed writing delivered to the foregoing attorneys-in-fact.

        IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 3rd day of September, 2015.

                                        /s/ Jeffrey S. Skoll
                                        ----------------------------------------
                                        Jeffrey S. Skoll